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The Guardian is a user-friendly datalogger with multiple integrated sensors to measure PAR (SM-500) or ePAR (SM-600), air temperature, humidity, vapor pressure deficit and dewpoint, CO2 concentration, barometric pressure, daily light integral, and photoperiod.
The Guardian is a user-friendly datalogger with multiple integrated sensors to measure PAR (SM-500) or ePAR (SM-600), air temperature, humidity, vapor pressure deficit and dewpoint, CO2 concentration, barometric pressure, daily light integral, and photoperiod.